(BIVN) – The long-period earthquake swarm that began Tuesday night beneath the Kīlauea Volcano caldera appears to have ended.

The USGS Hawaiian Volcano Observatory that summit-area seismicity was back to within normal, background rates, with tremor fluctuations associated with lava lake spattering. Deflationary tilt continues to be recorded, and the height of the summit lava lake fell to 128 ft. below the rim of the Overlook crater when measured Thursday morning.

A screen grab of the USGS map showing the locations of the quakes, taken yesterday.

On the East Rift Zone, lava from the episode 61g flow is still active.

Although there is no lava flowing into the ocean, scientists focused on the delta at inactive Kamokuna ocean entry with a photograph posted to the HVO website today. The caption below the photo, which can be seen above, states:

The Kamokuna delta on Kīlauea’s south flank continues to erode from wave action against the rock. A small sea arch present only 2 weeks ago has now collapsed, with only a small column sticking up above the waves (far left of the image). An unstable sea cave is being eroded into the delta (dark area in the middle of the image), and will continue to change with wave action. The tumulus that formed at the end of the delta’s activity in November is still visible as a double-peaked mound.